正常成人心尖搏动位置是第五肋间左锁中线内
A. 0.5-1.0cm
B. 1.0-1.5 cm
C. 1.5-2.0cm
D. 2.0-2.5cm
E. 2.5-3.0cm
心界可向两侧增大,坐位时呈三角形烧瓶样,卧位时心底部浊音界增宽见于
A. 气胸
B. 大量心包积液
C. 高血压性心脏病
D. 肺源性心脏病
E. 心肌病
There are generally two types of packing: sales packing and transportation packing. In this dialogue, for sales packing, the buyer chooses ________ packing from skin packing, hanging packing and blister packing; for transportation packing, the seller advises 100 boxes in a ________ case with overall ________ to protect cargo from ________ and ________.
________ and ________ have been discussed in this dialogue.